2 * Generic OPP Interface
4 * Copyright (C) 2009-2010 Texas Instruments Incorporated.
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License version 2 as
11 * published by the Free Software Foundation.
14 #ifndef __LINUX_OPP_H__
15 #define __LINUX_OPP_H__
17 #include <linux/err.h>
18 #include <linux/notifier.h>
23 enum dev_pm_opp_event {
24 OPP_EVENT_ADD, OPP_EVENT_REMOVE, OPP_EVENT_ENABLE, OPP_EVENT_DISABLE,
27 #if defined(CONFIG_PM_OPP)
29 unsigned long dev_pm_opp_get_voltage(struct dev_pm_opp *opp);
31 unsigned long dev_pm_opp_get_freq(struct dev_pm_opp *opp);
33 bool dev_pm_opp_is_turbo(struct dev_pm_opp *opp);
35 int dev_pm_opp_get_opp_count(struct device *dev);
36 unsigned long dev_pm_opp_get_max_clock_latency(struct device *dev);
37 struct dev_pm_opp *dev_pm_opp_get_suspend_opp(struct device *dev);
39 struct dev_pm_opp *dev_pm_opp_find_freq_exact(struct device *dev,
43 struct dev_pm_opp *dev_pm_opp_find_freq_floor(struct device *dev,
46 struct dev_pm_opp *dev_pm_opp_find_freq_ceil(struct device *dev,
49 int dev_pm_opp_add(struct device *dev, unsigned long freq,
50 unsigned long u_volt);
51 void dev_pm_opp_remove(struct device *dev, unsigned long freq);
53 int dev_pm_opp_enable(struct device *dev, unsigned long freq);
55 int dev_pm_opp_disable(struct device *dev, unsigned long freq);
57 struct srcu_notifier_head *dev_pm_opp_get_notifier(struct device *dev);
58 int dev_pm_opp_set_supported_hw(struct device *dev, const u32 *versions,
60 void dev_pm_opp_put_supported_hw(struct device *dev);
62 static inline unsigned long dev_pm_opp_get_voltage(struct dev_pm_opp *opp)
67 static inline unsigned long dev_pm_opp_get_freq(struct dev_pm_opp *opp)
72 static inline bool dev_pm_opp_is_turbo(struct dev_pm_opp *opp)
77 static inline int dev_pm_opp_get_opp_count(struct device *dev)
82 static inline unsigned long dev_pm_opp_get_max_clock_latency(struct device *dev)
87 static inline struct dev_pm_opp *dev_pm_opp_get_suspend_opp(struct device *dev)
92 static inline struct dev_pm_opp *dev_pm_opp_find_freq_exact(struct device *dev,
93 unsigned long freq, bool available)
95 return ERR_PTR(-EINVAL);
98 static inline struct dev_pm_opp *dev_pm_opp_find_freq_floor(struct device *dev,
101 return ERR_PTR(-EINVAL);
104 static inline struct dev_pm_opp *dev_pm_opp_find_freq_ceil(struct device *dev,
107 return ERR_PTR(-EINVAL);
110 static inline int dev_pm_opp_add(struct device *dev, unsigned long freq,
111 unsigned long u_volt)
116 static inline void dev_pm_opp_remove(struct device *dev, unsigned long freq)
120 static inline int dev_pm_opp_enable(struct device *dev, unsigned long freq)
125 static inline int dev_pm_opp_disable(struct device *dev, unsigned long freq)
130 static inline struct srcu_notifier_head *dev_pm_opp_get_notifier(
133 return ERR_PTR(-EINVAL);
136 static inline int dev_pm_opp_set_supported_hw(struct device *dev,
143 static inline void dev_pm_opp_put_supported_hw(struct device *dev) {}
145 #endif /* CONFIG_PM_OPP */
147 #if defined(CONFIG_PM_OPP) && defined(CONFIG_OF)
148 int dev_pm_opp_of_add_table(struct device *dev);
149 void dev_pm_opp_of_remove_table(struct device *dev);
150 int dev_pm_opp_of_cpumask_add_table(cpumask_var_t cpumask);
151 void dev_pm_opp_of_cpumask_remove_table(cpumask_var_t cpumask);
152 int dev_pm_opp_of_get_sharing_cpus(struct device *cpu_dev, cpumask_var_t cpumask);
153 int dev_pm_opp_set_sharing_cpus(struct device *cpu_dev, cpumask_var_t cpumask);
155 static inline int dev_pm_opp_of_add_table(struct device *dev)
160 static inline void dev_pm_opp_of_remove_table(struct device *dev)
164 static inline int dev_pm_opp_of_cpumask_add_table(cpumask_var_t cpumask)
169 static inline void dev_pm_opp_of_cpumask_remove_table(cpumask_var_t cpumask)
173 static inline int dev_pm_opp_of_get_sharing_cpus(struct device *cpu_dev, cpumask_var_t cpumask)
178 static inline int dev_pm_opp_set_sharing_cpus(struct device *cpu_dev, cpumask_var_t cpumask)
184 #endif /* __LINUX_OPP_H__ */